Outputs of a Moving Window Cross Correlator When the Input is a Phase-Reversed Code
Ernest E. Hollis · IEEE Transactions on Aerospace and Electronic Systems · 1967
Figure 1 shows the cross correlation øpp(τ) of the plus code in the moving window with a plus code followed by a plus code. Figure 2 shows the cross correlation øpn(τ) of the code in the window with a plus code followed by a minus code.4The displacement variable τ is quantized into bit lengths. The point τ = 0 is where the pluss code in the Window completely overlaps the first plus code, and the point τ = 52 is where the plus code in the window completely overlaps the code which follows the first code.5(This code is a plus code in the case illustrated in Fig. 1 and a minus code in the case illustrated in Fig. 2.)